{"product_id":"victron-cyrix-ct-12-24v-230a-battery-combiner","title":"Victron Cyrix-ct 12\/24V-230A intelligent battery combiner - CYR010230010","description":"\u003ch1 style=\"color: #f87c24;\"\u003eVictron Cyrix-ct 12\/24V 230A Intelligent Battery Combiner\u003c\/h1\u003e\n\n\u003cp\u003eThe Victron Cyrix-ct is a microprocessor-controlled battery combiner designed for 12V and 24V systems carrying up to 230A continuous current. It automatically connects battery banks in parallel when both are being charged, and disconnects them when charging stops, protecting the starter battery from being drained by auxiliary loads. It is well suited to marine, vehicle and off-grid installations where two separate battery banks need to be managed without manual switching.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMicroprocessor-controlled logic connects and disconnects battery banks automatically based on voltage thresholds, with no manual intervention required.\u003c\/li\u003e\n  \u003cli\u003eRated for 230A continuous current at 12V or 24V DC, making it suitable for high-demand auxiliary circuits.\u003c\/li\u003e\n  \u003cli\u003eProtects the starter or primary battery by disconnecting the auxiliary bank when the system voltage drops below the set threshold.\u003c\/li\u003e\n  \u003cli\u003eCompatible with all battery chemistries including lead-acid, AGM, gel and lithium, as the combiner responds to voltage rather than chemistry-specific signals.\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.3kg, allowing installation in confined spaces typical of marine and vehicle applications.\u003c\/li\u003e\n  \u003cli\u003eDesigned to work alongside alternators, solar chargers and shore power chargers without requiring additional configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Cyrix-ct operates by monitoring the voltage of both battery banks. When either bank reaches a pre-set charge voltage (indicating an active charging source), the internal relay closes and the banks are connected in parallel, allowing charge current to flow to both. When the voltage drops back below the threshold, the relay opens and the banks are isolated again. This prevents a discharged auxiliary bank from pulling down the starter battery.\u003c\/p\u003e\n\n\u003cp\u003eThe \"ct\" designation indicates this unit is intended for use between a starter battery and a consumer (auxiliary) battery, making it the standard choice for dual-battery setups in vehicles, motorhomes, boats and similar mobile or off-grid applications. Unlike a simple diode isolator, the Cyrix-ct introduces virtually no voltage drop, meaning both batteries receive the full charge voltage from the alternator or charger. The 230A rating covers the majority of professional installations without requiring an upgrade to a higher-rated unit.\u003c\/p\u003e\n\n\u003cp\u003eThe unit includes a built-in delay on both connect and disconnect to prevent relay chatter during fluctuating charge conditions. It also features an ignition input that can be used to force the relay open when the engine is off, giving additional control over when the banks are combined.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSKU: CYR010230010\u003c\/li\u003e\n  \u003cli\u003eSystem voltage: 12V or 24V DC\u003c\/li\u003e\n  \u003cli\u003eContinuous current rating: 230A\u003c\/li\u003e\n  \u003cli\u003eWeight: 0.3kg\u003c\/li\u003e\n  \u003cli\u003eGTIN: 8719076022206\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDual-battery systems in motorhomes, campervans and caravans where a starter battery must be kept isolated from leisure loads.\u003c\/li\u003e\n  \u003cli\u003eMarine installations requiring automatic combining of engine start and house battery banks.\u003c\/li\u003e\n  \u003cli\u003eOff-grid vehicles and 4x4 expedition builds with high auxiliary current demands.\u003c\/li\u003e\n  \u003cli\u003eCommercial vehicles with refrigeration or tail-lift equipment running from a secondary battery bank.\u003c\/li\u003e\n  \u003cli\u003eSolar-charged auxiliary systems where the combiner allows the alternator to top up the auxiliary bank during driving.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eWhat Is Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Victron Cyrix-ct 12\/24V 230A intelligent battery combiner\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eThe Cyrix-ct should be installed by a qualified electrician or auto-electrician familiar with DC battery systems. Connections must be made with appropriately rated cable and correctly sized fusing on each battery connection. The unit is not polarity protected, so correct wiring orientation must be confirmed before energising the system. For marine installations, follow the relevant BMEA or IEC wiring standards. The ignition input wire, if used, must be connected to a switched 12V or 24V supply that is live only when the engine is running.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":59856057303374,"sku":"CYR010230010","price":97.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/3698\/8238\/files\/VoltaconSolar_-_CYR010230010_-_Cyrix-ct_12-24V-230A_intelligent_battery_combiner.webp?v=1781101961","url":"https:\/\/voltaconsolar.com\/products\/victron-cyrix-ct-12-24v-230a-battery-combiner","provider":"VoltaconSolar","version":"1.0","type":"link"}